123.243.155.0/24

AS7545 · TPG Telecom Limited

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Summary

Country	Australia
Domain	tpg.com.au
ASN	AS7545
Parent Range	123.243.0.0/16
Registry	APNIC
ID	TPG-AU

WHOIS Details

inetnum:        123.243.0.0 - 123.243.255.255
netname:        TPG-AU
descr:          TPG Internet Pty Ltd.
country:        AU
org:            ORG-TIPL2-AP
admin-c:        TH178-AP
tech-c:         TH178-AP
abuse-c:        AT937-AP
status:         ALLOCATED PORTABLE
remarks:        Australian Internet Service Provider (ISP)
remarks:        http://www.tpg.com.au
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-AU-TPGCOM
mnt-routes:     MAINT-AU-TPGCOM
mnt-irt:        IRT-TPGCOM-AU
last-modified:  2020-07-17T05:30:05Z
source:         APNIC

irt:            IRT-TPGCOM-AU
address:        TPG Internet Pty Ltd.
address:        65 Waterloo Road
address:        North Ryde NSW 2113
e-mail:         hostmaster@tpgtelecom.com.au
abuse-mailbox:  hostmaster@tpgtelecom.com.au
admin-c:        TH178-AP
tech-c:         TH178-AP
auth:           # Filtered
remarks:        hostmaster@tpgtelecom.com.au was validated on 2026-01-05
mnt-by:         MAINT-AU-TPGCOM
last-modified:  2026-01-14T01:37:11Z
source:         APNIC

organisation:   ORG-TIPL2-AP
org-name:       TPG Internet Pty Ltd
org-type:       LIR
country:        AU
address:        65 Waterloo Road
phone:          +61-2-9850-0800
fax-no:         +61-2-9850-0813
e-mail:         ip@tpgtelecom.com.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:46Z
source:         APNIC

role:           ABUSE TPGCOMAU
country:        ZZ
address:        TPG Internet Pty Ltd.
address:        65 Waterloo Road
address:        North Ryde NSW 2113
phone:          +000000000
e-mail:         hostmaster@tpgtelecom.com.au
admin-c:        TH178-AP
tech-c:         TH178-AP
nic-hdl:        AT937-AP
remarks:        Generated from irt object IRT-TPGCOM-AU
remarks:        hostmaster@tpgtelecom.com.au was validated on 2026-01-05
abuse-mailbox:  hostmaster@tpgtelecom.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2026-01-05T00:44:01Z
source:         APNIC

role:           TPG Hostmaster
address:        TPG Telecom Limited
address:        65 Waterloo Road
address:        North Ryde NSW 2113
country:        AU
phone:          +61 2 9850 0800
fax-no:         +61 2 9850 0817
e-mail:         hostmaster@tpgtelecom.com.au
remarks:        -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
remarks:        Send all spam and abuse reports to abuse@tpg.com.au or
remarks:        via our web interface at the link provided below:
remarks:        http://www.tpg.com.au/about/enquiry.php?type=Report%20Spamming
remarks:        .
remarks:        Please include detailed information such as full message
remarks:        headers and times in UTC
remarks:        --
remarks:        Send all network related issues such as routing to
remarks:        ipnoc@tpgtelecom.com.au
remarks:        -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
remarks:        Australian Internet Service Provider (ISP)
remarks:        http://www.tpg.com.au
admin-c:        TPG3-AP
tech-c:         TPG2-AP
tech-c:         TA56-AP
nic-hdl:        TH178-AP
notify:         hostmaster@tpgtelecom.com.au
mnt-by:         MAINT-AU-TPGCOM
last-modified:  2024-12-23T03:41:13Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 123.243.155.0/24

Range	ASN	Company	Num of IPs
123.243.0.0/16	AS7545	TPG Internet Pty Ltd.	65,536

Nearby Ranges

BGP prefixes that overlap with 123.243.0.0/16

Range	ASN	Company	Num of IPs
123.243.0.0/16	AS7545	TPG Internet Pty Ltd.	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

129 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
123.243.155.198	AS7545 TPG Telecom Limited	`1.66ms` from Brisbane, AU

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
73.168.22.72	AS7922 Comcast Cable Communications, LLC	`6.50ms` from Chicago, US
79.249.15.152	AS3320 Deutsche Telekom AG	`3.28ms` from Frankfurt am Main, DE
14.182.249.200	AS45899 VNPT Corp	`2.06ms` from Hanoi, VN
185.172.60.8	AS60203 Innovaciones Tecnlogicas del Sur S.L.	`5.05ms` from Madrid, ES
73.58.174.120	AS7922 Comcast Cable Communications, LLC	`6.52ms` from Murfreesboro, US
71.228.187.104	AS7922 Comcast Cable Communications, LLC	`10.75ms` from Murfreesboro, US
128.59.243.40	AS14 Columbia University	`0.98ms` from New York City, US
179.63.125.88	AS271575 Fastway Telecom Comunicacoes - EIRELI	`1.29ms` from Osasco, BR
92.174.60.24	AS3215 Orange S.A.	`1.08ms` from Paris, FR
95.231.71.8	AS3269 Telecom Italia S.p.A.	`2.69ms` from Rome, IT
157.205.18.120	AS17514 Otsuka Corp.	`3.47ms` from Tokyo, JP
31.62.99.248	AS5617 Orange Polska Spolka Akcyjna	`12.37ms` from Warsaw, PL
82.168.2.248	AS1136 KPN B.V.	`2.23ms` from Amsterdam, NL
108.18.131.8	AS701 Verizon Business	`2.02ms` from Ashburn, US
89.247.167.152	AS8881 1&1 Versatel GmbH	`2.90ms` from Berlin, DE
99.72.37.72	AS7018 AT&T Enterprises, LLC	`10.61ms` from Chicago, US
164.100.60.136	AS4758 National Informatics Centre	`1.01ms` from Delhi, IN
34.245.237.184	AS16509 Amazon.com, Inc.	`0.16ms` from Dublin, IE
80.189.230.56	AS6871 Plusnet	`3.50ms` from Erith, GB
178.157.112.248	AS9009 M247 Europe SRL	`0.26ms` from Frankfurt am Main, DE
27.65.30.168	AS7552 Viettel Group	`1.88ms` from Ho Chi Minh City, VN
49.244.109.248	AS23752 Nepal Telecommunications Corporation, Internet Services,	`7.32ms` from Kathmandu, NP
83.35.194.168	AS3352 TELEFONICA DE ESPANA S.A.U.	`10.15ms` from Madrid, ES
115.69.2.184	AS18390 Spintel Pty Ltd	`1.85ms` from Melbourne, AU
39.89.110.232	AS4837 CHINA UNICOM China169 Backbone	`1.74ms` from Qingdao, CN

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 123.243.155.128

traceroute to 123.243.155.128 (123.243.155.128): 64 hops max, 52 byte packets

1 [AS15169] 74.125.251.94 197.721 ms

2 [AS15169] 192.178.97.142 198.972 ms

3 *

4 [AS9942] 203.221.3.33 203.996 ms

5 [AS7545] 203.219.107.126 213.123 ms

6 *

7 [AS7545] 123.243.155.128 221.217 ms

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On January 19th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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